ccf (2 bytes): An unsigned integer that
specifies the count of CF12
records that follow the containing record. MUST be greater than or equal to
0x0001.

A - fToughRecalc (1 bit): A bit that
specifies that the appearance of the cell requires significant
processing. This information can be used to optimize the redraw of conditional
formatting when data values change.

For example, an application
could determine that a conditional formatting rule that contains certain
functions or a conditional formatting rule that takes more than a predetermined
amount of time to calculate designates that the conditional formatting requires
significant processing, and could set this bit to 1.

nID (15 bits): An unsigned integer that
identifies this record.

refBound (8 bytes): A Ref8U structure that
specifies bounds of the set of cells to which the rules are applied. The set
of cells that it represents MUST include all of the cells represented by field sqref.

sqref (variable): A SqRefU structure that
specifies the cells to which the conditional formatting rules apply. sqref.cref
MUST be greater than zero and less than or equal to 1026.